Shearing and punching machine.



C, A. STICH. SHEARlNG AND PUNCHING MACHINE.

' 4 APPLICATION FILED NOV. 3. 1916. 1,259,801. Patented Mar. 19, 1918. 5 SHEETSP-SHEET 1.

INVENTOR C. A. STICH.

SHEARING AND PUNCHING MACHINE.

APPLICATION FILED NOV. a. 1916.

Patented Mar. 19, 1918.

5 SHEETS-SHEET 2- WITNESSES Y [NVEN TOR C. A. STICH.

SHEARING AND PUNCHING MACHWNE. APPLICATION FILED NOV. 3. 1916.

1 ,259,801 Patented Mar. 19, 1918.

5 SHEETS-$HEET 3- c. A. STICH. SHEARING AND PUNC HING MACHINE.

APPLICATION FILED NOV. 3 I916. 1,259,801. Patented Mar. 19, 1918.

5 SHEETS-SHEET 4.

a/n/ WC/L- B M 1, Mfimms y 1 WITNESSES C. A. STICH.

SH EARING AND PUNCHING MACHINE. APPucATlo'u FILED NOV. a. 1916.

5 SHEETS-SHEET 5- INVENTOR.

% ORNEY- CHARLES A. STICH, OF NEW YORK, N. Y.

SHEABING AND PUNCHIN G MACHINE.

Specification of Letters Patent.

Patented Mar. 19, 1918.

Application filed November 3, 1916. Serial No. 129,257.

To all whom it may concern:

Be it known that I, CHARLES A. S'rlcn, a citizen of the United States of America, residing at West New Brighton, New York, N. Y., have invented new and useful Shearing and Punching Machines, of which the following is a specification.

The invention relates particularly to improvements in machines for punching and shearing plates, bars or other shapes of iron or other metal.

The main object is to obtain a maximum amount. of-power by a'single operation. Another object is to provide a hand power machine which can be operated by one or two operators from either or both sides of the machine. Another object is to provide a machine which can be readily converted from a hand power machine to one driven by a belt or motor by simply substituting gears and fly-wheel for the hand levers but without altering the'general construction of the machine. Another object is to provide a machine which can be turned in any direction whether operated by hand or driven by a belt or motor.

The invention in itspreferred form has a vertically movable gate Orhead operated by a special system of'hand levers and toggles to punch or shear plates, rods or bars. Secondary slides operated by the head are adapted to cut right and left handed angles. One operating handle is located on each of two opposite sides of the machine so that the headcan be operated by either'handle from either side. devices both handles may be operated simultaneously. The main body or framework and operating mechanism are mounted on a turn-table so that the machine may be turned in any direction toward the work. By substituting a set of gears for the hand levers the machine may be driven by a belt or motor, and still turn in any direction without interfering with the application of power. K

Figure 1, is a rear projection and partial vertical sectionof the entire machine showing the operating parts retracted or lifted and the ends of the operating handles broken off. 7

Fig. 2, is av similar front view of the left' hand half of a machine and showing the right hand half only partly exposed.

Fig. 3, is a vertical sectional view on the plane of the line 38 of Fig. 1

By suitable interlocking;

Fig. at, is a horizontal section and plan on the plane of the line l'l of Fig. 1.

Fig. 5, is a fragmentary section on the plane of the line 5-5 of Fig. 1.

Fig. 6, is a fragmentary section on the plane of the line 66 of Fig. 2.

Figs. 7 to 15 inclusive are perspective views of some of the movable'parts.

Figs. 16 and 17 are perspective views of the crank shaft and connecting rod to be used when the machine is driven by belt or 0. The shaftf is carried by the side plates Z) 6 and carries crankeccentrics f f con.- nected to the levers e. The arm 0 is provided with a hook c engaging under a hook f on the eccentric so as to couple the parts together when the arm 6 is moved to the left as shown in Fig. 1. A rod is provided for coupling the arm 6 and the eccentric f positively. This rod 6 may be moved in and out by a rack and pinion e and the handle (2*. A stationary stop a may be provided on the main frame for the arm 0. f is connected bya rod 9 to a socket in the .slide it. A cap piece h rigidly connects the opposite upper ends of the sides of the slide 72., Links 1' and j are hinged at each edge of the slide it. Toggle 7c is swung on stationary stud l carried by the main frame and has-its lower end seated in a socket in the lower end of'the link i. A pair of links m m connect the lower ends of links z and y' and are provided with flanges m overstanding the socket joint connection between toggle 7c and link 2' to hold the joint in position. Link We is pivotally mounted on a pin m which passes through the upper endsof the arms of the yoke n. Yoke n is carried by a pin 0 on the vertically movable gate or head 0. This head 0 has guide grooves'o for the headh. On the reverse side, the head ohas a stud or projection g carrying the two toggles r r. The lower end of each toggle 9' Each eccentric carries a slide 1" with an angle cutter or blade 1. Springs 8 are interposed between the movable head or gate 0 and the main frame to counter-balancethe weight of the head and attached parts and to raise them to their normal inoperative position after the operation of shearing or punching has been completed.

The main frame carries the stationary cutters a a a a a and die (L The vertically movable head 0 carries the cutters 0 0 and the punch 0 The cutters a and 0 constitute shears for dividing or shearing a plate. Preferably a channel or guide a is provided on the main frame for one of the sheared edges and a table a on the frame for the other sheared edge. The cutters r and o and r and a are adapted to cut reverse angles, the cutters 0* a and (b are adapted to cut rods or bars of any suitable shape.

hen an operating lever c is pulled clownward and outward, its link (Z draws the up per end of the arm a outward and thus turns the eccentric f on the shaft f and forces the rod 9 downward, moves the slide it downward and the connecting links 7; and downward, and the toggle 70, causes the links on to move dow ward and swing outward as the slide it descends, this swings the upper end of the yoke n outward and moves the main head or gate 0 downward with the shearing or punching cutters. A very long sweep of the operating lever c is thus trans lated into a relatively short throw of the head and cutters so as to enable a single operator to apply great power. hen the operating lever is released, the springs s s returns the parts to their normal. inoperative position. The connection between the arm a and the eccentric f is such that when the rod 0 is disengaged from the eccentric f the movement of the eccentric in a counterclockwise direction, as viewed in Fig. 1, may be effected without moving the corresponding arm a. This makes it possible to use either one of the operating levers 0 independently of the other. If it is desired to apply power by both of the operating levers c c, the rods 6 will be engaged with their respective eccentrics 7" and both levers operated at the same time, thereby obtaining double the amount of pressure. A very considerable advantage exists by reason of this double operating lever construction in that the machine can be operated from each side independently, or from both sides simultaneously thus getting the advantage of a right or left hand machine as well as the double power when desired,

The operating parts of the machine may be conveniently mounted on a turntable having rollers I; t so that the entire machine may be turned on the axis 25' in the direction most convenient for the work at hand.

The same machine may be used as a beltdriven or motor-driven machine by removing the operating levers and the shaft f with eccentrics f and rods 9. The crank shaft u is substituted for the shaft 7 and the connecting rod u is substituted for the rod g as shown in Fig. 18. The frame '0 is mounted on the upper part of the main frame of the machine and supports the shafts u a 11 and a These shafts carry respectively the gears 41' c o 12* o and o. The axis of the power shaft 26 is preferably a prolongation of the axis of the pintle center t of the turntable, so that the gearing may be operated without interfering with the,

turning of the machine. w represents the fly-wheel or other motive power or device for rotating the gearing and operating the mechanism through the instrumentality of the slide it in the manner previously described.

What I claim is 1. In a machine of the character described, a supporting frame, a head slidably mounted in said frame, a slide movable relatively to said head, means for operating said slide, two sets of toggle links connected be tween the supporting frame and the slidablc head and a pair of substantially parallel operating links connected between the slide and each set of toggle links.

Tn a machine of the character described, a supporting frame, a head slidably mounted in said frame, a slide movable relatively to said head and disposed between opeach side of the slide and extending from said slide to the toggle links at that side of the slide.

o. in a machine or the char acier described, the combinarion of a vertically movable head, a slide movable relatively thereto, a stationary member, an arm swinging on said stationary member, a yoke swinging on said head, a link connecting said slide and said arm, a second link connecting said slide and said yoke, means for connecting the ends of said links adjacent said yoke and said arm and means for operating the slide.

at. In a machine of the character described, the combination of a vertically movable head, a slide movable relatively thereto, a stationary member, an arm swinging on said stationary member, a yoke swinging on said head, a link connecting said slide and said arm, a second link connecting said slide and said yoke, means for connecting the ends of said links adjacent said yoke and said arm, means overlapping the joint between said arm and its link and means for operating the slide.

5. In a' machine of the character described, the combination of a slide, a pivot rod transverse thereto, two eccentrics loosely mounted on said pivot rod, rods connecting said eccentrics with said slide, an arm for and independently detachable means of connection between each operating lever and said member.

7 In a machine of the character described, a vertically movable slide, a transverse pivot rod, an eccentric mounted on said pivot rod, a rod connecting said eccentric and said slide, an arm having a hooked connection with said eccentric, a locking rod carried by said arm for engaging said eccentric, means for operating said rod and means for swinging said arm.

8. In a machine of the character described, a supporting frame, a vertically movable head on said frame, means for operating said head, a pair of toggle arms each pivoted at one end on said head, oppositely facing cutter slides on the frame, the opposite ends of said toggle arms being pivoted to the respective cutter slides and relatively stationary, oppositely facing, angular cut ters cooperating with the cutter slides.

9. In a machine of the character described, the combination of a supporting frame, a head slidably mounted in said frame, a set of shearing cutters at one side of said head, punch and die members at the opposite side of said head, rod cutters adjacent the central portion of the head between the punch and shearing cutters at the opposite sides thereof, oppositely facing angular cutters mounted on the frame intermediate the punch and shearing cutters at the opposite sides of the head, and means on the head for operating said angular cutters.

10. In a machine of the character described, a vertically movable head, a slide vertically guided therein, a transverse shaft, a cap-piece extending over the top of said shaft and connecting the upper side .portions of said slide, means of'connection be tween said slide and said head, and means for operating said slide including a crank on said shaft and. a rod connecting said crank and said slide.

11. In a machine of the character described, a supporting frame, a reciprocating tool carrying head working in said frame, an operating slide for said head, means for imparting movement to said slide, a pair of substantially parallel links pivoted at one end to said slide, a link pivotally connecting the opposite free ends of said substantially parallel links, and connecting links from said connected portions of the substantially parallel links to the supporting frame and the tool carrying head respectively.

12. In a machine of the character described, a supporting frame, a reciprocating tool carrying head working in-said frame, an operating member relatively movable in respect to the head, means for imparting movement to said operating member, a pair of substantially parallel links connected at one end with said operating member, a link connecting the opposite free ends of said pair of links, and toggle links between said connected portions of the pair of links and the supporting frame and head.

13. In a machine of the character described, a supporting frame, a reciprocating tool carrying head working in said frame, an operating member movable relatively to said head, means for imparting movement scribed, a supporting frame, a reciprocating tool carrying head working in said frame,

15. In a machine of the character de-' scribed, a supporting frame, a reciprocating tool carrying head working in said frame, an operating slide disposed between opposite sides of the tool carrying head, means for imparting movement to said operating slide, a pair of operating links at each side of the slide and operatively connected therewith at one end, links connecting the opposite free ends of said operating links,

toggle links engaged between said connecting links and the opposite sides of the head and toggle links connected between the frame and one of the operating links at each of said opposite sides of the head.

16. In combination, a supporting frame, a reciprocating tool carrying head Working in said frame, a slide movable relatively to the head, meansfor operating said slide, a toggle link pivoted on the frame, an operating link having a socket in the end portion thereof receiving the free end of said toggle link, and connected at its opposite end with the slide, a second operating link connected with the slide, a link connecting said operating links and having a portion mrerlying the socket in the first operating link to retain the end of the toggle link therein, and a second toggle link engaged between the connecting link and the head.

17. In combination, a supporting frame, a reciprocating tool carrying head working in said frame, an operating slide movable relatively to said head, means for imparting movement to said slide, compound toggle connections between the supporting frame and the slide and the head, divergently opcrating cutters on the supporting frame and divergent toggles connected with the slide and working said cutters.

18. In a machine of the character described, the combination of a supporting frame, an operating slide, a pair of independently operable crank eccentrics pivotally supported on the frame, rods connecting said crank eccentrics with the slide, an operating arm for each of the crank eccentrics, and means for independently connecting and disconnecting said operating arms to and from the respective crank eccentrics.

19. In a machine of the character described, a supporting frame, a slideworking in said frame, a pair of independently operable crank eccentrics pivoted on the frame, rods connecting said crank eccentrics with the slide, operating arms having hooked engagement with said crank eccentrics, and locking rods for releasably connecting said operating arms to the respective eccentrics.

20. In a machine of the character described, a supporting frame, a slide working in said frame, a pair of independently operable crank eccentrics pivoted on the frame,

and working to opposite sides of a common center, rods connecting said eccentrics with the slide and operating arms connected with the crank eccentrics and working in opposite directions.

21. In a machine of the character described, a supporting frame, a slide working in said frame, a pair of independently operable crank eccentrics pivoted on the frame and working to opposite sides of a common center, rods connecting said eccentrics with the slide and operating arms connected with the crank eccentrics and working in opposite directions, said operating arms having dctachable means of connection with the respcctive crank eccentrics.

In a machine of the character described, a supporting frame, a slide working in said frame, a pair of independently operable crank eccentrics pivoted on the frame and working to opposite sides of a common center, rods connecting said eccentrics with the slide and operating arms connected with the crank eccentrics and working in opposite directions, and operating handles at opposite sides of the machine connected with the op erating arms and working in opposite directions.

23. In machine of the character described, a supporting frame, a reciprocating tool carrying head working in said frame, a slide operable independently of said head, compound toggle connections between the supporting frame, the slide and the head, independently operable handles, operating connections from said handles to the slide, and means for independently disengaging the connections from either of said handles to the slide whereby one or both the handles may be employed at will.

CHARLES A. STICH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. G. 

